Iron-Mediated Si–H Bond Activation: Synthesis, Characterization and Spectral Properties of a Series of Fe <sup>II</sup> (H)(SiR <sub>3</sub> )(dmpe) <sub>2</sub> Complexes

Synthesis and structural characterization of a series of iron(II) silyl hydrides stabilized by a bisphosphine ligand are discussed. Fe<sup>II</sup>(H)(SiR<sub>3</sub>)(dmpe)<sub>2</sub> compounds were formed by insertion of <i>in situ</i> generated Fe<sup>0</sup>(dmpe)<sub>2</sub> in the presence of Si-H partners (R<sub>3</sub>SiH = PhSiH<sub>3</sub>, Ph<sub>2</sub>SiH<sub>2</sub>, and Ph<sub>3</sub>SiH). Multinuclear NMR monitoring (<sup>1</sup>H, <sup>31</sup>P, <sup>29</sup>Si) demonstrated a strong preference for the <i>cis</i> configuration regardless of the silicon substituents, a tendency mirrored by DFT calculations, which originates from the strong <i>trans</i> influence of the silyl ligands, making those compounds rather unusual in the family of octahedral ferrous hydrides. Stoichiometric reactivity of the compounds toward organic electrophiles and proton sources were investigated.

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Journal
Inorganic Chemistry
Published
2025-11-04
DOI
https://doi.org/10.1021/acs.inorgchem.5c03278
Primary Topic
Organometallic Complex Synthesis and Catalysis
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article
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article

Iron-Mediated Si–H Bond Activation: Synthesis, Characterization and Spectral Properties of a Series of Fe II (H)(SiR 3 )(dmpe) 2 Complexes

Vincent Wowk, Guillaume Lefèvre, Lise‐Marie Chamoreau, Till Neumann et al.
Inorganic Chemistry
Organometallic Complex Synthesis and Catalysis
article

Iron-Mediated Si–H Bond Activation: Synthesis, Characterization and Spectral Properties of a Series of Fe II (H)(SiR 3 )(dmpe) 2 Complexes

Vincent Wowk, Guillaume Lefèvre, Lise‐Marie Chamoreau, Till Neumann, Faycel Djebbar
article en

Abstract

Synthesis and structural characterization of a series of iron(II) silyl hydrides stabilized by a bisphosphine ligand are discussed. Fe<sup>II</sup>(H)(SiR<sub>3</sub>)(dmpe)<sub>2</sub> compounds were formed by insertion of <i>in situ</i> generated Fe<sup>0</sup>(dmpe)<sub>2</sub> in the presence of Si-H partners (R<sub>3</sub>SiH = PhSiH<sub>3</sub>, Ph<sub>2</sub>SiH<sub>2</sub>, and Ph<sub>3</sub>SiH). Multinuclear NMR monitoring (<sup>1</sup>H, <sup>31</sup>P, <sup>29</sup>Si) demonstrated a strong preference for the <i>cis</i> configuration regardless of the silicon substituents, a tendency mirrored by DFT calculations, which originates from the strong <i>trans</i> influence of the silyl ligands, making those compounds rather unusual in the family of octahedral ferrous hydrides. Stoichiometric reactivity of the compounds toward organic electrophiles and proton sources were investigated.

Inorganic ChemistryVol. 64(45)
Centre National de la Recherche Scientifique (FR), Chimie ParisTech - PSL (FR), Université Paris Sciences et Lettres (FR), Sorbonne Université (FR), Institut Parisien de Chimie Moléculaire (FR), Health & Life (Taiwan) (TW)
Openalex Percentile: Top 75%
Organometallic Complex Synthesis and Catalysis
DOISourceOpenAlex
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Iron-Mediated Si–H Bond Activation: Synthesis, Characterization and Spectral Properties of a Series of Fe <sup>II</sup> (H)(SiR <sub>3</sub> )(dmpe) <sub>2</sub> Complexes — Vincent Wowk, Guillaume Lefèvre, et al. · Inorganic Chemistry (2025) | TGRS Research Map | TGRS